Potentials for Inhibiting Corrosion on Mild Steel using Various Borphosphate Glasses In 1 M HCl

Bougrine, Khadija; Saber, Issam; Barebita, Hanane; Ferraa, Soumya; Ouakki, Moussa; Belfaquir, Mustapha; El Youbi, Mohamed Salahdine

doi:10.22034/abec.2025.720351

Potentials for Inhibiting Corrosion on Mild Steel using Various Borphosphate Glasses In 1 M HCl

Document Type : Original Article

Authors

Khadija Bougrine ¹

Issam Saber ¹

Hanane Barebita ¹

Soumya Ferraa ¹

Moussa Ouakki ¹^{, 2}

Mustapha Belfaquir ³

Mohamed Salahdine El youbi ¹

¹ Laboratory of Organic Chemistry, Catalysis, and Environment, Faculty of Sciences, Ibn Tofaïl University, PO Box 133, Kenitra, 14000, Morocco

² National Higher School of Chemistry (NHSC), University Ibn Tofail BP. 133-14000, Kenitra, Morocco

³ Laboratory of Advanced Materials and Process Engineering, Faculty of Sciences, Ibn Tofail University, PO Box 133, Kénitra, 14000, Morocco

10.22034/abec.2025.720351

Abstract

This study investigates the effectiveness of glassy compounds with the chemical formulation 30Li₂O-20ZnO-xB₂O₃-(50-x)P₂O₅ as corrosion inhibitors for mild steel in a 1 M HCl solution. Using techniques such as polarization, impedance spectroscopy, and scanning electron microscopy (SEM), the anticorrosive properties of compounds P₁, P₂, and P₃ were evaluated. The results show that the inhibition efficiency increases with inhibitor concentration, reaching maximum values of 93.4%, 94.7%, and 96.3% for P₁, P₂, and P₃, respectively. Polarization analysis revealed that these compounds act as mixed inhibitors in hydrochloric acid. The SEM analysis indicated that the inhibitors adsorb onto the steel surface, reducing the corrosion effects. Compound P₃ exhibited the highest performance, with an inhibition efficiency of 96.3%, owing to its specific chemical structure that provides superior efficacy. These findings suggest that these glassy compounds have significant potential for specific industrial applications, emphasizing the importance of composition and concentration in optimizing their anticorrosive properties.

Keywords

Glassy substance

Polarization

Stoichiometry

Electrochemical methods

HCl

Corrosion inhibition

Subjects